Shopify App

Back in Stock Notifications for Shopify

Add a Notify Me button to every sold-out product. Customers subscribe in one tap and get a back-in-stock notification the moment inventory returns — DemandLoop handles everything automatically.

Install on Shopify — Free

How it works

Up and running in minutes

Customer subscribes on your store

A Notify Me button appears automatically on sold-out product pages. Customers subscribe with one tap — no account required.

Shopify inventory updates

DemandLoop monitors inventory in real time via the Shopify API. The moment stock is available, the notification pipeline triggers.

Notification sent, revenue tracked

Subscribers receive a personalized back-in-stock notification by email and web push. Every purchase it drives is attributed and shown in your analytics dashboard.

Why DemandLoop

Everything you need, nothing you don't

Email + Web Push

Reach subscribers on both channels. Web push works without an inbox — higher visibility for time-sensitive restocks.

Revenue Attribution

See exactly how much revenue each restock notification generated — not just open rates or clicks.

Variant-level Subscriptions

Customers subscribe to a specific size, color, or variant. Notifications only go out when that exact variant restocks.

Works with any Shopify theme

Installs via Shopify's Theme Extension framework — no Liquid code edits, no developer needed.

FAQ

Common questions

Does DemandLoop work with all Shopify themes?

Yes. DemandLoop uses Shopify's Theme Extension framework which integrates with every Shopify 2.0 theme without editing Liquid files.

What happens when a product with multiple variants restocks?

DemandLoop tracks subscriptions at the variant level. A subscriber waiting for a size-M blue shirt only gets notified when that exact variant is back in stock.

Is there a free plan?

Yes. DemandLoop has a permanent free plan that includes back-in-stock alerts, basic analytics, and up to 50 email notifications per month.

How fast are notifications sent after a restock?

Notifications are sent within minutes of an inventory update received from Shopify's webhook. Typical delivery time is under 5 minutes.

Can I customize the notification email?

Yes. You can add your logo, brand colors, and custom copy from the DemandLoop dashboard. No HTML editing required.

Start recovering revenue from stockouts

Install DemandLoop in minutes. Free plan available, no developer needed.

Install on Shopify — Free